The psycho-social effects of COVID-19 on Italian adolescents' attitudes and behaviors.

Background: COVID-19 is an emerging issue that has significant consequences on psycho-social well-being.

Methods: In this regard, a survey was conducted on a large group of adolescents in Italy. The survey investigated four items: concerns and fears, information on the pandemic, provisions of public authorities (e.

Clinical characteristics of headache in Italian adolescents aged 11-16 years: a cross-sectional questionnaire school-based study.

Background: The purpose of this study was to determine headache characteristics, impact on daily activities and medication attitudes among a large sample of adolescents in Italy.

Methods: Secondary school classes were randomly selected from a national stratified multistage sampling. Data regarding socio-familial factors, headache characteristics, impact on daily activities and medication use were recorded with an anonymous multiple-choice questionnaire.

FIRE: fractal indexing with robust extensions for image databases.

As already documented in the literature, fractal image encoding is a family of techniques that achieves a good compromise between compression and perceived quality by exploiting the self-similarities present in an image. Furthermore, because of its compactness and stability, the fractal approach can be used to produce a unique signature, thus obtaining a practical image indexing system. Since fractal-based indexing systems are able to deal with the images in compressed form, they are suitable for use with large databases.